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Corn and Cob Mill. v 'No. 80,244. Patented July 21, I868.

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Corn and Cob Mill.

Patented July 21, 1868.,

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Letters Patent No. 80,244, dated July 21, 1 868.

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TO ALL WHOM 'IT MAY CONCERN:

Be it known that we, THOMAS UGKER and ANDREWYH UTGHINS,*b OtlI pf Amanda, county of Fairfield, and State of Ohio, have invented certain new and useful Improvements in'Corn and Cob-Crushing Machines; and we do hereby declare the following to be a full,.clear, and exact description of the same, reference being had to' the accompanying drawing, making a part of this specification, in which- Figure 1 is a side-elevation of our improved corn and cob-crushing machine.

Figure 2 is a front view of one of the lower stoves.

Figure 3 is a similar view of one of the upper stoves with'the teeth applied.

Figure 4 is an elevation of the inner cone or cylinder,

Figure 5 represents a front and side view of one of the teeth detached.

Figure 6 represents one of the upper perforated stares before they are applied thereto.

Our invention relates to a novel construction ot' a cornand cob-crusher and mill combined, and consists in making the crusher and mill, or the upper and lower. portions of both, the grinding-cylinder or cone, and itsexternal casing, in separate parts, each composed of sections, or metal staves banded together, and operating as. hereinafter described.

7 It further consists in providing the staves or sections of the crusher with perforations, and in forming the teeth separately, and providing them with shanks, adapting them to be attached to the perforated staves by riveting or otherwise,'in such manner that they may be readily removed and replaced, or renewed when'broken, as hereinafter described. 1 V

This arrangement also enables us-to use the staves for repairing or replacing either the cone or the shell, by attaching the teeth to either the convex or concave side of the staves, as the case may require.

"In the accompanying drawing, A represents a stout frame of any suitable form and construction, to afford; a support for the internaIIy toothed outer drum or casing 'B B, and bearings for the shaft 0 oi the rotating toothed cone or cylinder D D, ofwhich thecrusher and mill is composed.

The upper parts, 13 and D, of the outer casing and cone orrcylin der are made separately from the lower portions, B D, and are each'composedof a number of metal staves, E, (see figs-3 and 6,) cast of uniform size, and are shown providedwith perforations to receive the shaulgs of the teeth F, also made or cast separately, I and in any desired or suitable form, (see fig. 5,) and secured to the staves by riveting or in any other suitable manner. If preferred, however, the teeth may be formed upon or cast with the staves.

The inner face of the lower stares of the external casing, and the outer adjacent face of the corresponding stares of the revolving-cone or cylinder, are represented in fig. 2. These stavcs are made in the same manner as those above described, except that the teeth being smaller and finer, to adaptthem to pulverize or grind what is broken by the teeth of the upper staves or crusher-part of the machine, said teeth-ribs or grindingsurfaces are formed upon or cast with the staves. The staves of the outer casing, thus formed, are united by means of hoops or hands, H'H', as represented in the drawing, the central bandior hoop H being rebated on both its edges, or otherwise adapted to receive the lower ends of the upper staves, and the upper end of the e means, and in'such manner as to give themthe proper lower. stoves secured thereto by. rivets oi' other suitabl working relation to each other.

The rotating-eoneor cylinder is provided diaphragm, to which the 'staves,arranged in a manner 'corresp b screws or other suitable fastenings. I r

At the junction of'the upper and lower portions of the machine there is an offset 111 the cone, or cylinder,-

or casing, either or both, for the purpose ofbringing the cone and easing nearer together at the'bottom or grinding-portion of the mill, to adapt them to the pulverizing process. V p

I represents a hopper attached to the top of the outer casiiig, through which the material to be operated upon is fed to the'crusher, and thence to. the mill.

at each end with a head and also with a central r'ebated disk or ending to those of the-outer case, may be secured J represents a system of gearing, througn which a rotary motion is imparted to the inner drum or cone, and which maybe operated either by hand or by other suitable motive-power, accordingto the size and capacity of the mill, and applied'in any usual manner. 7 l

The operation of the mill and crusher will be readily understood without further description. The upper or coarser part of the machineor mill is adapted to the crushing of cobsor other similar substance or materials, and the lower part to the pulverizing or grinding of the broken and crushed materials to any required degree of fineness. It will be obvious that changes in the form and arrangement of the teeth of both the crushing and grinding-portions of the machine may be varied without departing from the invention illustrate-din the accompanying drawing and hereinabove described. i 7

Having now describedour invention, what'we claim as new, and desire to secure by Letters Patent, is

The upper and lower circles of toothed staves forming the grinding-surfaces of both the revolving-cone and the surrounding case, the upper circle of both revolving-cone and the case being composed of perforated stares, which are capable of being applied to either said cone'or case, the whole banded together at top and bottom, and at thejunction of the upper andlower parts of the m ill, substantially as and for the purpose described.

THOMAS UGKER, v ANDREW HUTOHINS.

Witnesses ENos Hurrnn, DAVID Youue. 

